Docs: move examples into code blocks

[imatwawana]

No description provided.

[github-actions]

Overall readability score: 60.79 (🟢 +0)

File	Readability
index.md	75.42 (🟢 +0.08)

View detailed metrics

🟢 - Shows an increase in readability
🔴 - Shows a decrease in readability

File	Readability	FRE	GF	ARI	CLI	DCRS
index.md	75.42	53.07	6.86	8.8	10.76	6.32
	🟢 +0.08	🟢 +0	🟢 +0	🟢 +0	🟢 +0.06	🟢 +0

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	60.79	47.6	9.56	11.61	12.06	7.31
	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0

View metric targets

Metric	Range	Ideal score
Flesch Reading Ease	100 (very easy read) to 0 (extremely difficult read)	60
Gunning Fog	6 (very easy read) to 17 (extremely difficult read)	8 or less
Auto. Read. Index	6 (very easy read) to 14 (extremely difficult read)	8 or less
Coleman Liau Index	6 (very easy read) to 17 (extremely difficult read)	8 or less
Dale-Chall Readability	4.9 (very easy read) to 9.9 (extremely difficult read)	6.9 or less

[josmperez]

LGTM.